GOODWILL AND INTANGIBLE ASSETS, NET - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization of intangible assets	$ 92,809	$ 84,819	$ 104,756
Completed technology
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization of intangible assets	43,863	39,005	40,621
Customer relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization of intangible assets	44,988	42,589	41,451
Backlog, trade name and other
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization of intangible assets	$ 3,958	$ 3,225	$ 22,684